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问题 单项选择题

随着抗生素广泛应用，引起细菌性肺炎的病原体最主要的变他是

A．肺炎球菌肺炎不断增加

B．革兰阴性杆菌肺炎不断增加

C．军团菌肺炎的发病率逐年下降

D．葡萄球菌肺炎很少发生

E．支原体肺炎很少发生

答案

参考答案：B

填空题

用括号内所给单词的适当形式填空

1. All his ________ (class) finish at five in the afternoon.

2. We ________ (China) people are kind to others.

3. We all like ________ (play) computer games.

4. Miss Zhang is our English teacher. We all like ________ (she) very much.

5. The ________ (five) day of a week is Thursday.

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问答题 简答题

什么是投影法？分为哪几类？
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